On 2011/10/27 04:33 PM, Revital Eres wrote: > Hello, > > I'm working on estimating register pressure in SMS and using > ira_available_class_regs for getting the number of available > registers. > However I encounter a case where ira_available_class_regs showed 64 > available regs for a certain class while ira_class_hard_regs_num > showed 61 so I am not sure which one I should use. (I'm also not sure > if ira_class_hard_regs_num can be used outside of ira-- if not, I > would need to do that calculation myself) > > Thanks, > Revital
Looking at the calculations of both values, I would say they should be the same, unless maybe... REG_ALLOC_ORDER for your target is missing some registers? Chung-Lin
